Pinking-shears



(No Model.)

L. AUSTIN.

PINKING SHEARS- No. 489,406. Patented Jan. 3, 1893.

UNITED STATES PATENT OFFICE.

LOUISE AUSTIN, OF WHATCOM, WASHINGTON.

PINKING-SHEARS.

SPECIFICATION forming part of Letters Patent No. 489,406, dated January3, 1893. Application filed June 16, 1892. Serial No. l$6,915. (Nomodel.)

To all whom it may concern:

Be it known that I, LOUISE AUSTIN, a citizen of the United States,residing at Whatcom, in the county of Whatcom and State of Washington,have invented certain new and useful Improvements in Pinking Scissors orShears and I do hereby declare the following to bea full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

My invention relates to method of and means for pinking cloth, silk,oiled fabrics, paper, leather, and other materials; and its object is toprovide a hand implement wherewith the pinking can be done Very rapidlyby a continuous cutting operation, similar to that of cutting fabricswith ordinary scissors or shears.

My invention consists in a novel construction of pinking scissors orshears, the same having their blades made much thicker than in ordinaryscissors or shears, and provided with male and female matching,projections and depressions of any desired configuration on their innerbroad faces, the projections and depressions running transversely to thelength of the blades, and being concentric with and forward of the pivotby which they are connected and on which they turn.

With my improved pinking scissors or shears, the pinking or scallopingcan always be made uniform and in line; and it is performed by cuttingcontinuously through the fabric from end to end or edge to edge; thusthe Work is very rapidly done, and, Where the fabric is severed, twoscalloped edges will be produced at the same operation.

My scissors or shears differ in principle from ordinary pinking irons ortools in the novel mode of operation just stated, as well as in theirconstruction, and they are free from the objections of slowness ofoperation, and the performance of inaccurate Work as experienced withordinary tools; with which tools, unless much time and care areexpended, perfect work can be seldom produced; and my scissors or shearsdiffer from pinking cutters which require the operator to place the toolat right angles to the edge of the fabric and keep it stationary whileperforming the pinking or `scalloping operation, from the fact thatunder my construction the scissors 0r shears require to be forcedcontinuously through the fabric in the direction of the length of theblades, which is not practicable with pivoted pinking blades asheretofore constructed and operated.

My invention also consists in certain details of construction of thepinking scissors or shears, as will be hereinafter described andspecifically claimed.

In the accompanying drawings, Figure l is a perspective view of myimproved pinking scissors or shears closed, and Fig. 2 a side view ofthe same open. Fig. 3 is a cross section through the pivot of the blade,Fig. 4 a horizontal longitudinal section, and Fig. 5 an end View. Figs.5, 6,7, 8, 9, l0, 11 and 12 show various designs of cutting edges that Icontemplate employing in the manufacture of my scissors.

A A indicate the blades of the scissors; A2, A3 the handle portions andB the pivot by which the blades are connected so as to operate likeordinary scissors. The blades may be either of homogeneous metal withthe handles or constructed separately and of fine steel, While thehandles may of coarser and cheaper material. When constructedseparately, the blades may be riveted to the handles or united theretoby brazing, bolting, or dovetailing, as may be found most desirable.

In Fig. 2 rivets d are employed as the means for uniting the blade andhandle portions to one another.

In Fig. 4 a dovetailf is adopted as a means for fastening the blade andhandle portions together.

In Figs. l and 2 the blade and handle portions are constructed in onepiece.

When the blades are made separate from the handle portions a series ofblades can be furnished with each pair of v handles, and each pair ofblades may have dierent forms or designs of pinking surfaces. As will beseen from the drawings, the upper and lower edges of the blades areparallel with one another and fiat from near the pivot to the front endsof the blade, or said upper and lower edges are at right angles to theirside surfaces, and parallel with one another, and the inner sidesurfaces are corrugated or scalloped or otherwise suitably formed withmatching depressions and elevations, the inner and outer lines of whichare concentric with the pivot B, and also forward of said pivot; thusinsuring at all times a most perfect fit of the said surfaces of theblades into one another, and, at the same time, insuring perfect cuttingedges by simply grinding the flat faces u. a. of the blades, same as ingrinding ordinary scissors; and also admitting of the scissors beingforced continuously through the material being cut. It is preferable topoint or bevel off the points of the blades, as indicated at g, as thisform overcomes the liability of the material, if paper, being torn bythe ends bearingon the same, as in the case when the ends are squaredoff.

I do not confine myself to the one configuration of cutting edge ofblade shown in Figs. 1,2 and 3 of the drawings, as the blades can beformed tocutconiigurations either as shown in Fig. 6, Fig. 7, Fig. 8,Fig. 9, Fig, l0, Fig. 1l, Fig. 12, orof almostany desired form;and,asshown in Figs. 11 and l2 I can have two or more different forms ofdepressions and projections on the same set of blades, or any otherdesired combinations of forms; it only being essential that the bladesare made a perfect male and female fit into one another, and theprojections and depressions in the broad sides of the blades areconcentric with the pivot and forward of said pivot.

With my scissors or shears, I can cut ornamental openings in the bodyportion of fabrics by doubling the fabric and reciprocating the scissorsalong the doubled edge of the fabric.

What I claim as my invention isz- 1. The within described improvedarticle of manufacture 'to Wit: Scissors or shears hav ing blades withmale and female matching, projections and depressions, of any desiredconfiguration, arranged ou the inner faces of the blades transversely tothe length of the blades and concentric with and forward of the pivot bywhich the blades are connected and on which they turn, substantially asdescribed.

2. Scissors or shears having blades with male and female matchingprojections and depressions arranged on the inner faces of the bladestransversely to the length of the blades and concentric with and forwardof the pivot on which the blades turn, said blades having surfaces attop and bottom which are parallel and fiat from near the pivot to theends of the blade, and which can be ground o to sharpen the cuttingprojections, substantially as described.

3. Scissors or shears having blades with male and female matchingprojections and depressions concentric with and forward of the pivot,and with points beveled off, substantially as described.

In testimony whereof I hereunto affix my signature in presence of twoWitnesses.

LOUISE AUSTIN.

Witnesses:

ELLA HrGGINsoN, PHIL GALLAHER.

